CLTS was introduced in Western Equatoria State state in October 2011 through a training facilitated by Plan International and sponsored by UNICEF. A number of organizations send representatives to participate in the training. In October 2012 fourteen villages  underwent Open Defecation Free (ODF) verification. These are villages that had been facilitated by one of UNICEF’s partners, Intersos. 10 of the villages had claimed to have attained ODF status and this provided a rationale for conducting the verification.

Read more about the verification mission in Yambio